Lee, Yee Loon, Heng Boon Koh, Ahmad Tarmizi Abdul Karim, Mia Wimala, and C. Ng. “CO2 Uptake Model of Biomass Silica Foamed Concrete”. International Journal of Integrated Engineering 2, no. 2 (September 6, 2010). Accessed May 5, 2024. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/203.